parasitic (English)

Where does "parasitic" come from?

The English adjective 'parasitic' is formed by combining the noun 'parasite' with the suffix '-ic'[1]. The word 'parasite' traveled into English through Middle French 'parasite', derived from Latin 'parasitus', which came from Ancient Greek 'parasitos', meaning a person who eats at the table of another[2][3]. This Greek term originated as a noun use of an adjective meaning feeding beside, built from 'para' meaning beside and 'sitos' meaning food or wheat and corn[2][4].

Open questions

• The details of the derivation of the Ancient Greek prefix 'para' from Proto-Indo-European roots are disputed. [5]
• The exact origin of the Ancient Greek noun 'sitos' remains uncertain, with scholars debating its connection to a proposed Proto-Indo-European verbal root for striking. [6]

Full etymology tree

• parasitic (English), 'Of or pertaining to a biological or symbolic parasite.'
  • derived parasite (English), 'An organism that lives on or in another organism of a different species, deriving benefit from living on or in that other organism, while not contributing towards that other organism sufficiently to cover the cost to that other organism.'
    • borrowed parasite (Middle French)
      • borrowed parasitus (Latin), 'guest'
        • borrowed παράσιτος (parásitos) (Ancient Greek), 'one who eats at the table of another, parasite'
          • compound παρά (pará) (Ancient Greek), '[with genitive]'
            • inherited *pərai (Proto-Hellenic), 'from'
          • compound σῖτος (sîtos) (Ancient Greek), 'grain, corn (in the British sense, encompassing wheat and barley, the cereal grains used by the ancient Greeks)'
            • inherited (Proto-Indo-European)
  • suffix -ic (English), 'Used to form adjectives from nouns with the meaning “of or pertaining to”.'

Ancestors

• parasite (English)

Descendants and derived words

• alloparasitic (English)
• antiparasitic (English)
• antiparasitic (English)
• autoparasitic (English)
• biparasitic (English)
• brood-parasitic (English)
• chemicoparasitic (English)
• circumparasitic (English)
• ectoparasitic (English)
• endoparasitic (English)
• entomoparasitic (English)
• epiparasitic (English)

Related words

• parasite (English)
• host (English)

Sources

1. parasitic (English) - Wiktionary
2. parasite (English) - Wiktionary
3. parasitus (Latin) - Wiktionary
4. παράσιτος (parásitos) (Ancient Greek) - Wiktionary
5. παρά (pará) (Ancient Greek) - Wiktionary
6. σῖτος (sîtos) (Ancient Greek) - Wiktionary

Updated October 2026

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Etymology data from Wiktionary, CC BY-SA 4.0 · About Miraris